#include<iostream>
#include<unistd.h>
#include<signal.h>
#include<sys/types.h>
#include<cstring>

using namespace std;


void Usage(string proc)
{
    cout<<"Usage: \n\t"<<proc<<"signum pid\n\n";
}

//mykill signum pid
int main(int argc, char *argv[])
{
    if(argc != 3)
    {
        Usage(argv[0]);
        exit(1);
    }

    int signum = stoi(argv[1]);
    pid_t pid = stoi(argv[2]);

    int n = kill(pid, signum);
    if(n == -1)
    {
        perror("kill");
        exit(2);
    }
    return 0;
}